PERFORMA SISTEM KOMBINASI REAKTOR (ABR DAN CSTR) DALAM PENURUNAN COD PADA PRA PEMBUATAN BIOGAS DARI LCPKS SKALA PILOT PLANT

Siti Masriani Rambe, Edwin Harianto Sipahutar

Abstract


The research is conducted to design and investigate of the condition of combined  reactor system. It is expected this research would be no methanogenesis reaction but hydrolysis-acidogenesis reaction.  The Hydrolysis- acydogenesis reactor was similar with anaerobic baffle reactor (ABR) designs, thus it was combined with Continue Stirred Tank Reactor (CSTR). Using the calculated character of POME, it can be concluded the spesification of ABR were 135 cm long, 50 cm wide, 130 cm height. It was equipped standing baffle reactor is 16 cm and clearance baffle reactor is 5 cm. The down-flow chamber is lower than the up-flow chamber that the down flow to  up flow is 1: 1,5 while  CSTR where 50 cm diameter, 75 cm height and 40 rpm. However, investigations of the reactor combined system would be carry out  in to account other factors, which include organic particle reducing of Hydraulic Retention Time (HRT) in the reactor. The result   is conducted with varying HRT 24, 36 and 42 days both once and 2 times dilution. The research would be   organic particle (COD) removal and The highest COD removal is 28 % of 36 Hydraulic Retention Time (HRT) and 1 times dilution.


Keywords


Biogas; Anaerobic Baffle Reactor; CSTR; Organic Particle; Palm Oil Mill Effluent;

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